JPH04298375A - Stamp device - Google Patents

Abstract

PURPOSE:To prevent the occurrence of bleeding when excessive coating with ink is effected by providing a means to wipe off ink with which a surface to be printed is coated. CONSTITUTION:When a housing 3 is pressed in the direction of an arrow mark B, ink with which an ink pad 7 is impregnated passes through the punched part and the porous base material of a stencil 17 and applied on a sheet 35. In this case, when a force by means of which the housing 3 is pressed in is too strong, bleeding of ink may occur to the sheet 35. When, to prevent occurrence of the bleeding, a stamp device 1 is horizontally moved in the direction of an arrow mark immediately after completion of printing, a wiping-off roller 31 rotatably located to a chassis 5 is rotationally moved over the sheet 35 to wipe off the excessively applied ink.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stamp device for stencil printing.

0002

2. Description of the Related Art Conventionally, small portable stamp devices for printing using perforated mimeograph paper on which letters, figures, etc. have been drawn with an iron brush or ballpoint pen have been used, for example, in the Japanese Patent Publication No. 54-952.
A stamp device 40 as described in Japanese Patent No. 3 is known. As shown in FIG. 2, in this stamp device 40, an inking unit 43 is supported on a table 41 so as to be movable back and forth, and a mimeograph paper 4 is attached to the inking unit 43.
5 is attached. When printing with this stamp device 40, the inking unit 4
By pressing the ink tank portion 47 provided above 3 toward the surface to be printed, the ink in the ink application unit 43 is applied to the surface to be printed via the mimeograph paper 45, and the ink is applied to the surface to be printed through the mimeograph paper 45. The resulting image is mimeographed onto the printing surface.

0003

However, in order to obtain printed matter with a good finish using such a stamp device 40, an appropriate amount of ink must be applied to the printing surface. That is, the amount of ink applied in such a stamp device 40 is determined by the pressing force with which the inking unit 43 presses the mimeograph paper 45, but if this pressing force is weak, the mimeographed image on the printing surface may be Faint printing may occur. On the other hand, if the ink application unit 43 increases the pressure with which it presses the mimeograph paper 45 in order to prevent printing from becoming blurred on the printing surface, the ink will be excessively applied to the printing surface, which will cause the ink to fade over time. This had the disadvantage that ink smeared and the print quality deteriorated.

The present invention has been made to solve the above-mentioned problems, and it prevents bleeding when excessive ink is applied to the printing surface, and makes it possible to pay attention to the amount of pressure applied during printing. It is an object of the present invention to provide a stamp device that can obtain printed matter with a good finish without causing problems.

[0005]

[Means for Solving the Problems] In order to achieve this object, the stamp device of the present invention is a stencil printing base paper formed by selectively perforating a sheet made of a porous support and a hot-melt resin. The stamp device performs stencil printing on a surface to be printed by pressing an ink pad impregnated with ink, and includes means for wiping off ink applied to the surface to be printed.

[0006]

[Operation] The stamp device of the present invention having the above configuration has the following features:
During stamping, the stencil printing paper and the ink pad move up and down together, and the ink impregnated in the ink pad is applied to the surface to be printed via the stencil printing paper. Then, the ink applied to the printing surface is wiped off by the ink wiping means before bleeding occurs.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a stamp device embodying the present invention will be described below with reference to FIG.

As shown in FIG. 1, the stamp device 1 includes a housing 3 in the shape of a hexahedron with one side open, side walls 5a,
Chassis 5 formed into a U-shaped cross section by 5b and 5c
It is composed of. A notch 3a is formed in a part of the housing 3 for mounting an ink pad 7 impregnated with ink. Further, a dial 9 for selecting input characters is provided on the upper surface 3b of the housing 3, and hiragana, alphanumeric characters, symbols, etc. are printed on the circumference of the dial 9. At the center of the dial 9, a button 9a is provided for confirming a character, symbol, etc. selected by rotating the dial 9. Further, on the upper right side of the dial 9, an input section 11 is provided which includes various function keys including a print key 11a, a power switch, and the like. A liquid crystal display 13 is arranged below the input section 11 for displaying characters, symbols, messages, etc. selected by the dial 9.

Further, inside the housing 3, an ink pad holder 15 having a locking piece 15a formed at its tip is formed integrally with the housing 3. Then, in a state where the housing 3 is covered from above the chassis 5, the ink pad 7 is inserted from the direction of arrow A, and the engaging portion 7a of the ink pad 7 is engaged with the locking piece 15a. Place the pad 7 in the ink pad holder 15
It can be attached to. Note that in this state, the housing 3 and the ink pad 7 move together in the vertical direction,
Moreover, the housing 3 and the chassis 5 move together in the horizontal direction.

On the other hand, a stencil printing base paper (hereinafter referred to as base paper) 17 made of a porous support and a hot melt resin is wound around the inside of the chassis 5, and the side wall 5
A base paper supply spool 19 rotatably supported at b is disposed. On the right side of the base paper supply spool 19, there is a thermal head 21 for perforating the hot-melt resin of the base paper 17 supplied from the base paper supply spool 19 into the shape of characters, symbols, etc. input using the dial 9. It is supported so as to be able to swing around a shaft 22 provided on the side wall 5a. On the side wall 5b, a platen 23 is normally rotatably supported at a position in close contact with the thermal head 21 with the base paper 17 in between, and a base paper winder is rotatably supported to wind up the base paper 17. A spool 25 and a take-up motor 27 for rotating the base paper take-up spool 25 are arranged.

The take-up motor 27 includes motor control means (not shown) for controlling the rotation of the take-up motor 27.
The base paper take-up spool 25 is also provided with a tension spring (not shown) that biases and holds the base paper 17 in the winding direction. The side wall 5b guides the base paper 17 wound around the base paper supply spool 19 so that it comes into close contact with the platen 23, passes directly under the ink pad 7, and is wound onto the base paper take-up spool 25. guide rollers 29a, 29b,
29c and 29d are also provided.

Wiping rollers 31 made of a material such as absorbent paper with excellent water absorption are rotatably mounted on the outer surfaces of the side walls 5a and 5c of the chassis 5, respectively. It is placed in a position where it can be moved horizontally. Furthermore, a thermal head 21 and a platen 2 are provided on the outer surface of the side wall 5b when replacing the base paper 17.
A release lever 33 is provided to facilitate replacement of the base paper 17 by separating it from the base paper 17.

Next, a method of using the stamp device 1 configured as described above will be explained.

When printing characters, symbols, etc. selected and confirmed using the dial 9 and button 9a, first, the print key 11a provided on the input section 11 is pressed. Then, the motor control means causes the take-up motor 27 to rotate the base paper take-up spool 25 at a constant speed to wind up the base paper 17. At that time, when the base paper 17 passes between the thermal head 21 and the platen 23, the thermal head 2
1 is driven to punch holes in the heat-melting resin of the base paper 17 in the shape of the characters, symbols, etc. When the perforation is completed, the motor control means rotates the take-up motor 27 to take up the base paper 17 onto the base paper take-up spool 25 so that the perforation part of the base paper 17 is located directly below the ink pad 7, and then winds up the base paper 17. Motor 27 is stopped.

Next, the paper 35 to be printed is placed below the stamp device 1, and the housing 3 is pushed in the direction of arrow B. Then, the ink pad 7 attached to the housing 3 moves together with the housing 3 in the direction of arrow B, and the base paper 1
7, and the base paper 17 further comes into contact with the paper 35. At this time, the ink impregnated into the ink pad 7 is transferred to the base paper 1.
It passes through the perforations 7 and the porous support and is applied to the paper 35 in the shape of the characters, symbols, etc. described above. Then, when you release your hand from the housing 3, the tension spring provided on the base paper take-up spool 25 causes the base paper 17 and the ink pad 7 to
Then, the housing 3 moves in the opposite direction of arrow B, returns to the state before being pushed in, and printing is completed.

By the way, when pushing the housing 3 in the direction of arrow B, if the pushing force is weak, the image printed on the paper 35 may be blurred, so there is a general tendency to push it in strongly. However, if the pushing force is too strong, excessive ink will be applied to the paper 35, which may cause the ink to bleed onto the paper 35 over time. To prevent this bleeding,
Immediately after printing is completed, when the stamp device 1 is horizontally moved in the direction of arrow C, the wiping roller 31 rotatably provided on the chassis 5 rotates over the paper 35 and wipes off the excessively applied ink. In other words, there is no need to consider how much force should be applied when pushing the housing 3, and as long as the housing 3 is pushed in with a force above a certain level, ink will not bleed onto the paper 35 and printed matter with a good finish can be obtained. can.

The present invention is not limited to the embodiments detailed above, and various changes can be made without departing from the spirit thereof. For example, in this embodiment, the wiping roller 31 is made of a material such as absorbent paper, but it may be made of a cloth-based material as long as it absorbs ink.

[0018]

Effects of the Invention As is clear from the above explanation, the stamp device of the present invention is equipped with a means for wiping off the ink applied to the printing surface through the stencil printing base paper, so that the stamp device can be used to remove pressure during printing. Printed matter with a good finish without bleeding can be easily obtained without worrying about the amount of force applied when printing.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment embodying the present invention.

FIG. 2 is a cross-sectional view of a conventional stamp device.

[Explanation of symbols]

7 Ink pad 17　Stencil printing base paper 21 Thermal head 31 Wiping roller 35 Paper

Claims (1)

[Claims] Claim 1: An ink pad impregnated with ink is pressed onto a stencil printing base paper, which is formed by selectively perforating a sheet made of a porous support and a hot-melt resin, onto the printing surface. A stamp device for performing stencil printing, characterized in that the stamp device includes means for wiping off ink applied to the surface to be printed.